One time I had a squirrel chew the flashing off of a roof vent. During a Louisiana rain we had water dripping through the den ceiling. So I went into the attic and arranged for the water to go into a bucket. Water was also splashing under a door on the back porch. The flashing had rolled down into a gutter and was backing water up so it was splashing where it could go under the back door. So in a thunderstorm I got out a wooden ladder and quickly removed that blockage. Way too much fun and excitement.
There were so many squirrels in the area that I could usually see five playing in the back yard any time I looked out during the day. Any time of the day. I tried to grow a small garden. If I disturbed the soil to plant anything, seeds or transplants, they'd dig it out.
I got a couple of smaller squirrel sized traps and removed over 50 squirrels from my back yard in about a month. I'm sure it was illegal but I took them about 10 miles to a "wilderness" area to release them. The squirrel pressure was so great in the area that as soon as I removed one another would come in from the neighborhood. After about 50 though the numbers were noticeably less.
One funny thing, I got my neighbor hooked on trapping squirrels. By his count, he removed over 100 from his back yard, next to mine. But he only took them to a nearby park. probably less than a mile. I imagine those squirrels were back home before he was. He was retired and really enjoyed it so I didn't say anything except, wow, that's a lot of squirrels.
The husband of a teacher my wife worked with also trapped squirrels. He would take them across to a friends place in the country on the north shore of Lake Pontchartrain and release them. Then in the fall they'd go squirrel hunting.
One time my wife head a transformer blow when she was outside. A squirrel had shorted it out. She saw the squirrel fall. The power company had that fixed pretty quickly.
I have good memories of squirrel hunting when growing up on the farm in the country. I do not have good memories of squirrels in suburbia, especially when the numbers get ridiculous.